MuidBuilder Class Reference

Build the Muid likelihoods starting from the hit pattern and the transverse scattering in the KLM. More...

#include <MuidBuilder.h>

Collaboration diagram for MuidBuilder:

Public Member Functions
	MuidBuilder (int pdg)
	Constructor. More...
	~MuidBuilder ()
	Destructor.
double	getPDF (const KLMMuidLikelihood *muid) const
	Get total PDG for a given hypothesis. More...

Private Member Functions
	MuidBuilder ()
	Default constructor.
	MuidBuilder (MuidBuilder &)
	Copy constructor.
MuidBuilder &	operator= (const MuidBuilder &)
	Copy assignment.
void	fillPDFs (MuidElementNumbers::Hypothesis hypothesis)
	Retrieve the PDFs from the database according to the given hypothesis. More...
void	spline (int n, double dx, double Y[], double B[], double C[], double D[])
	Construct spline interpolation coefficients (first, second, third derivatives). More...
double	getLongitudinalPDF (const KLMMuidLikelihood *muid) const
	Calculate the longitudinal PDF for a given hypothesis. More...
double	getTransversePDF (const KLMMuidLikelihood *muid) const
	Calculate the transverse PDF for a given hypothesis. More...

Private Attributes
double	m_LayerPDF [MuidElementNumbers::getMaximalOutcome()+1][MuidElementNumbers::getMaximalBarrelLayer()+1][MuidElementNumbers::getMaximalBarrelLayer()+MuidElementNumbers::getMaximalEndcapForwardLayer()+2]
	Longitudinal PDF.
double	m_ReducedChiSquaredThreshold [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1]
	Reduced chi-squared (transverse) analytical PDF: threshold.
double	m_ReducedChiSquaredScaleX [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1]
	Reduced chi-squared (transverse) analytical PDF: horizontal scale ~ 1.
double	m_ReducedChiSquaredScaleY [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1]
	Reduced chi-squared (transverse) analytical PDF: vertical scale.
double	m_ReducedChiSquaredPDF [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1][MuidElementNumbers::getSizeReducedChiSquared()]
	Reduced chi-squared (transverse) PDF (overflows in last bin).
double	m_ReducedChiSquaredD1 [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1][MuidElementNumbers::getSizeReducedChiSquared()]
	First derivative of reduced chi-squared PDF (for spline interpolation).
double	m_ReducedChiSquaredD2 [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1][MuidElementNumbers::getSizeReducedChiSquared()]
	Second derivative of reduced chi-squared PDF (for spline interpolation).
double	m_ReducedChiSquaredD3 [MuidElementNumbers::getMaximalDetector()+1][MuidElementNumbers::getMaximalHalfNdof()+1][MuidElementNumbers::getSizeReducedChiSquared()]
	Third derivative of reduced chi-squared PDF (for spline interpolation).
double	m_ReducedChiSquaredDx
	Reduced chi-squared (transverse) PDF's bin size.
DBObjPtr< KLMLikelihoodParameters >	m_LikelihoodParameters
	Likelihood parameters.

Detailed Description

Build the Muid likelihoods starting from the hit pattern and the transverse scattering in the KLM.

Definition at line 39 of file MuidBuilder.h.

Constructor & Destructor Documentation

MuidBuilder()

MuidBuilder ( int  pdg )

explicit

Constructor.

Parameters

[in]

pdg

PDG code of the particle hypothesis.

Definition at line 52 of file MuidBuilder.cc.

                                : m_ReducedChiSquaredDx(0.0)
{
  MuidElementNumbers::Hypothesis hypothesis = MuidElementNumbers::calculateHypothesisFromPDG(pdg);
  if (hypothesis == MuidElementNumbers::c_NotValid)
    B2FATAL("The particle associated to the PDG code " << pdg << " is not supported.");
  /* Fill PDFs by reading database. */
  fillPDFs(hypothesis);
  if (m_ReducedChiSquaredDx == 0.0)
    B2FATAL("Invalid PDFs for PDG code " <<  pdg);
}

Member Function Documentation

fillPDFs()

void fillPDFs ( MuidElementNumbers::Hypothesis  hypothesis )

private

Retrieve the PDFs from the database according to the given hypothesis.

Parameters

[in]

hypothesis

Hypothesis number.

Definition at line 67 of file MuidBuilder.cc.

getLongitudinalPDF()

double getLongitudinalPDF ( const KLMMuidLikelihood *  muid ) const

private

Calculate the longitudinal PDF for a given hypothesis.

Parameters

[in]

muid

KLMMuidLikelihood dataobject.

Definition at line 150 of file MuidBuilder.cc.

getPDF()

double getPDF

(

const KLMMuidLikelihood *

muid

)

const

Get total PDG for a given hypothesis.

Parameters

[in]

muid

KLMMuidLikelihood dataobject.

Definition at line 145 of file MuidBuilder.cc.

getTransversePDF()

double getTransversePDF ( const KLMMuidLikelihood *  muid ) const

private

Calculate the transverse PDF for a given hypothesis.

Parameters

[in]

muid

KLMMuidLikelihood dataobject.

Definition at line 202 of file MuidBuilder.cc.

spline()

void spline ( int  n, double  dx, double  Y[], double  B[], double  C[], double  D[]  )

private

Construct spline interpolation coefficients (first, second, third derivatives).

Parameters

[in]	n	Number of bins.
[in]	dx	Width of each bin.
[in]	Y	Value of the bins.
[in]	B	First derivative.
[in]	C	Second derivative.
[in]	D	Third derivative.

Definition at line 110 of file MuidBuilder.cc.

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The documentation for this class was generated from the following files:

• klm/muid/include/MuidBuilder.h
• klm/muid/src/MuidBuilder.cc